• Title/Summary/Keyword: Urban environment plan

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Assessment of Feasibility of Rainfall-Runoff Simulation Using SRTM-DEM Based on SWMM (SWMM 기반 SRTM-DEM을 활용한 강우-유출 모의 가능성 평가)

  • Mirae Kim;Junsuk Kang
    • Journal of Environmental Science International
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    • v.33 no.7
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    • pp.443-452
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    • 2024
  • The recent increase in impermeable surfaces due to urbanization and the occurrence of concentrated heavy rainfall events caused by climate change have led to an increase in urban flooding. To predict and prepare for flood damage, a convenient and highly accurate simulation of rainfall-runoff based on geospatial information is essential. In this study, the storm water management model (SWMM) was applied to simulate rainfall runoff in the Bangbae-dong area of Seoul, using two sets of topographical data: The conventional topographic digital elevation model (TOPO-DEM) and the proposed shuttle radar topography mission (SRTM)-DEM. To evaluate the applicability of the SRTM-DEM for rainfall-runoff modeling, two DEMs were constructed for the study area, and rainfall-runoff simulations were performed. The construction of the terrain data for the study area generally reflected the topographical characteristics of the area. Quantitative evaluation of the rainfall-runoff simulation results indicated that the outcomes were similar to those obtained using the existing TOPO-DEM. Based on the results of this study, we propose the use of SRTM-DEM, a more convenient terrain data, in rainfall-runoff studies, rather than asserting the superiority of a specific geospatial data.

Ventilation Corridor Characteristics Analysis and Management Strategy to Improve Urban Thermal Environment - A Case Study of the Busan, South Korea - (도시 열환경 개선을 위한 바람길 특성 분석 및 관리 전략 - 부산광역시를 사례로 -)

  • Moon, Ho-Yeong;Kim, Dong-Pil;Gweon, Young-Dal;Park, Hyun-Bin
    • Korean Journal of Environment and Ecology
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    • v.35 no.6
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    • pp.659-668
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    • 2021
  • The purpose of this study is to propose a ventilation corridor management plan to improve the thermal environment for Busan Metropolitan City. To this end, the characteristics of hot and cool spots in Busan were identified by conducting spatial statistical analysis, and thermal image data from Landsat-7 satellites and major ventilation corridors were analyzed through WRF meteorological simulation. The results showed the areas requiring thermal environment improvement among hot spot areas were Busanjin-gu, Dongnae-gu, industrial areas in Yeonje-gu and Sasang-gu, and Busan Port piers in large-scale facilities. The main ventilation corridor was identified as Geumjeongsan Mountain-Baekyangsan Mountain-Gudeoksan Mountain Valley. Based on the results, the ventilation corridor management strategy is suggested as follows. Industrial facilities and the Busan Port area are factors that increase the air temperature and worsen the thermal environment of the surrounding area. Therefore, urban and architectural plans are required to reduce the facility's temperature and consider the ventilation corridor. Areas requiring ventilation corridor management were Mandeok-dong and Sajik-dong, and they should be managed to prevent further damage to the forests. Since large-scale, high-rise apartment complexes in areas adjacent to forests interfere with the flow of cold and fresh air generated by forests, the construction of high-rise apartment complexes near Geumjeongsan Mountain with the new redevelopment of Type 3 general residential area should be avoided. It is expected that the results of this study can be used as basic data for urban planning and environmental planning in response to climate change in Busan Metropolitan City.

Examination of Factors Influencing Urban Higher Temperature using E-GIS DB (E-GIS DB를 활용한 도시 고온화 영향인자 검토)

  • Kim, Keum-Ji;Yoko, Kamata;Lee, Jung-Jae;Yoon, Seong-Hwan
    • 한국태양에너지학회:학술대회논문집
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    • 2009.11a
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    • pp.44-49
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    • 2009
  • In this study, we performed urrban climate simulation how both the factor of environmental land and artificial factors influence on the formation of urban temperature. With deducing quantitative data, this study could get more accurate results of the urban temperature using urban climate simulation system. In the case of natural land cover, it appeared that there are effects on the lowering temperature and the lower temperature rate appeared in the water land cover on the whole. This is considered as temperature in water land was low because of the characteristics of water land having evaporation latent heat was high and convective sensible heat was low. In case of building which has building coverage ratio, 5% with 10 floors and building coverage ratio, 15 % with 6 floors, it appears that the temperature in the water land is $33.6^{\circ}C$. In case of building coverage ratio 5%, temperature dropped when buildings has more than 4 stories. This is regarded as the size of building is bigger, the temperature dropped in relatively because of the fluctuation of the rate of solar heat from the land. At the present time, the urban temperature are higher because of various artificial factors in the city. With these results, this study supposed to be a basies of the future studies for considering both the composition of building coverate ratio and floor plan.

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A Comparative Study on the Regulations for Landscape Managements of Historic Cities in Korea and Japan (한국과 일본의 역사도시 경관관리법규의 비교 -경주시와 나라시의 사례로-)

  • 정성태;조세환;오휘영
    • Journal of the Korean Institute of Landscape Architecture
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    • v.28 no.3
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    • pp.105-115
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    • 2000
  • The purpose of paper is to investigate the characteristics of regulations on landscape management of historic city of Kyongju in Korea, compared with those of Nara in japan to answer the research question that what is the regulative characteristics of landscape management of historic city in Korea. We have analyzed the three laws of the two country - Urban Planning Law, Cultural Assets Protection law, and Building Law. This research has been done in terms of regulative systems of the two country and articles, ordinances, and bylaws on landscape managements of historic city Major components of urban historic landscape management are goals and devices of preservation, preserving actor, authorized actor permitting major planning change, regulatory power on landscape development, and backgrounds of enacting regulations. From this research, we have fond the fact that 1) Kyongju City has general and implicit objectives of landscape management based on conservation of natural environment while Nara City has concrete objectives of lansdscape management, 2) Kyongju City has no regulations on landscape planning while Nara City has systematic planning measures such as designation of landscape management district, planning for preservation of historic landscape, and planning for establishing urban landscape, 3) In an application of landscape management district, Kyongju City designate the district based on the general principle of urban planning district while nara City designate it in a more detailed manner such as district of preservation of historic landscape, district of landscape establishment, and district of building agreement. 4) Kyongju has no legal actor in implementation and management of historic landscape plan while Nara City has administrative organization and procedures, including citizen participation, public hearing, and voluntary participation, and 5) Kyongju City does not operate the consultation committee on landscape management just like Nara City operating. This research results will provide us the remedial insights for landscape preservation of such Korean historic city as Kongju, Puyo, and Chunju. Since our research is focused on the limited area of preserving landscape in historic cities in korea and Japan we need to study sociocultural issues on preserving urban historic landscape more in depth in the future.

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A Study on the Direction of Urban Planning for Coping with Climate Change focusing on Urban Metabolism (도시 메타볼리즘 중심의 기후변화대응 도시 계획 방향에 관한 연구)

  • Lee, Sung Hee;Kim, Jong Kon
    • Journal of Climate Change Research
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    • v.4 no.3
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    • pp.279-290
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    • 2013
  • This study aims to suggest the direction of urban planning for coping with climate change focusing on urban metabolism. The study consists of two main parts: literature review and case study. The cases are selected for mixed-use housing estate in Europe, which established the plans for energy saving and efficient use of resources and waste. The case study was carried out in accordance with the framework, which had four aspects that are 'to minimize energy input,' 'to use renewable energy sources,' 'to recycle waste,' and 'to reuse natural resources.' As a result, in all the cases, analysis showed that the circular metabolism system was built for energy, waste and water resources and that the plan satisfying all the aspects of the framework was established. Moreover, main planning elements are different reflecting resource conditions for each case. In conclusion, in order to achieve urban metabolism, it will be necessary to analyze various conditions including the surrounding environment of the region and to introduce planning elements that can maximize the regional potential.

A Study on the Congress Palace in new city(E42) of Rome - Focused on the Adalberto Libera's project(1937-1943) - (로마 신도시(E42) 국제회의장에 관한 연구 - 아달베르토 리베라의 당선작(1937-1943)을 중심으로-)

  • Lee, Dae-Jin
    • Journal of architectural history
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    • v.18 no.4
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    • pp.81-99
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    • 2009
  • The study is on the analysis of Adalberto Libera's works, which are those of the competition works for international congress hall in 'E42'. I exerted a conclusion from analysis and studies of congress palace as well as informed data about architect Libera and uninformed original sketch of it. 1. Through analysis of original sketch data in possession of archives of paris Centre Pompidue and relevant sketch from the works, Libera adopts the modern architecture of Italy to the formalization process of concept as one of architectural methods. 2.In contrast to the way of elucidation of historicity of classicism architect, Libera's initial sketch is one of the traits from modernist's architectural concept process. Libera completes his architectural style to have developed new architecture vocabulary from 'Floating transparent box' which was result from intuition and imagination. 3 By comparing all the first plan, the second plan and constructed project, we can infer that Libera's plan was influenced by E42's classicism urban environment and masterplanner Piacentini. In addition, through historicity explanation method of modernist, it is adjudicated that the front side of facade with classism and the back side of facade with modern are partially accepted. 4. By analysing architectural concept's formalization process from original sketch of Congress palace, outstanding architect of Italian Fascism architecture, it provided new methods of architectural programming with the concrete examples.

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A Study on Structural Safety Management Plan for Above Ground and Underground Structure Dismantling work (지상 및 지하구조물 해체공사를 위한 구조 안전관리 방안 연구)

  • Shim, Hak-Bo;Jeon, Hyun-Soo;Seok, Won-Kyun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2021.11a
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    • pp.194-195
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    • 2021
  • Due to urban regeneration projects or changes in the living environment, there is an increasing need to demolish old buildings that have lost their functions. Demolition of above ground and underground structures is an important construction project that greatly affects the construction period and safety of the entire process. However, it is difficult for the safety officer to manage the demolition work due to the lack of specific and diverse data applicable to the site of the demolition plan. Therefore, in this study, items that need to be improved in structural safety when the above-ground and underground structures are demolished are reviewed and organized. For the main contents of structural safety management in demolition work, 1) structural review reflecting the order of demolition work, 2) installation and dismantling of steel pipe scaffolding and dust nets, 3) installation and dismantling of system scaffolding, 4) installation and dismantling of fall prevention nets, 5) jack support Installation and dismantling, 6) movement of equipment, movement and planning between floors, 7) equipment for demolition of structures, height of remnants, 8) site cleanup, and 9) equipment operators were categorized and arranged.

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A Study on the Development of Eco-cultural City Evaluation Indicator Using AHP(Analytic Hierarchy Process) (AHP를 활용한 생태문화도시 평가지표 개발 연구)

  • Choi, Song-Hun;Koo, Bon-Hak
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.20 no.6
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    • pp.51-66
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    • 2017
  • This study was conducted to develop detailed evaluation indicator as a way for evaluating sustainable urban ecosystem health focused on ecological urban elements from an eco-cultural point of view after the appearance of Eco-cultural City to meet various needs. And this study was also conducted to search for ways to utilize the detailed evaluation indicator like institutionalization. Eco-cultural City was defined as a city where ecological environment and cultural environment coexist and was aimed to derive applicable planning indicators in Korea. For this, FGI was executed, planning indicators were derived, and suitability was examined. The weights were calculated based on the selected indicators through AHP expert survey. After getting the result of FGI, experts reviewed the adequacy of definition from Eco-cultural City and its necessity, and the applicability of planning indicators was examined with evaluation of suitability. As a result of evaluating suitability, it was judged that 41 indicators based on an overall average of 4 areas were relatively high on suitability and also important among sectors. As for the analysis result, the priority order in multistage classification was as followed : harmony between human and environment(B) 0.349, environmental resources(A) 0.266, city environment and quality of culture(C) 0.208, and role division and citizen participation(D) 0.177. In the second level of relative importance, environment protection and infra in the role and citizen participation section was the highest, 0.449, harmonization policy and system in calculating weights was the highest.

A Study on Application of English Library to Improve for English Education Environment in Rural Area (농촌지역 영어교육환경 개선을 위한 영어도서관 활용방안)

  • Ham, Joung-Hyun;Kim, Jong-Nam
    • Journal of Agricultural Extension & Community Development
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    • v.17 no.2
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    • pp.261-277
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    • 2010
  • This study is undertaken to present the facilitation plan of English library that specialized the resource-based learning to provide learning that is suited for student's own learning style and self-leading learning as the method to learn contents required for individuals as a method for improving the English education environment in the rural areas. For this purpose, a study was conducted to find out the possibility of facilitating English library in the rural areas on the basis of consulting for structuring and operating English library in public libraries located in isolated areas clustered with low income class in the urban areas where the conditions are similar to the rural areas and results are shown as the followings. First, it displayed the possibility to have the rural area located with many closed schools or small-sized schools to facilitate the available facilities to build up the environment to specialize in English education that would be as comparable as any facilities in any urban setting. Second, it would enable the conditions to moderate the conflict on education environment for local residents who felt inequality in education by providing the benefit for fine education linked to public education through English library without going through private education. And third, English library that has the limitations in locality or economic means would actively participate by local educational institutions and volunteers to enhance the sense of master for the local residents and bring residents together to make positive impact on local economy facilitation.

The Spatial and Temporal Analysis of Landscape Structure in Daegu Metropolitan Sphere (대구광역도시권의 시·공간적 경관구조 변화패턴 분석)

  • Choi, Won-Young;Jung, Sung-Gwan;Park, Kyung-Hun;Oh, Jeong-Hak;You, Ju-Han;Kim, Kyung-Tae
    • Journal of the Korean Association of Geographic Information Studies
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    • v.8 no.2
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    • pp.175-185
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    • 2005
  • Governmental authorities have been trying to develop our city in respect to the growth of economy and it is true that their developmental policies have negative effects on ecosystem without doubt. To estimate these negative effects, this study is mainly focused on analysing the usage of the land according to the urban growth, and the temporal and spatial patterns between the elements which consist of the landscape of Daegu Metropolitan Sphere, by using the GIS method and the landscape indices. The results of the this study are as follow; the urban areas widened for $193.4km^2$ due to the shift of the urban function, and the forest areas were encroached for $455.6km^2$ into other landcover patterns. It was the shift of the agriculture areas that are given the most influence in those procedures since those developmental conditions are relatively satisfactory. Moreover the forest areas are structurally fragmented into the complicated form, and also the patterns of adjacent patches are become complex. These transitions are regarded as causes of increased external interventions to the forest areas, and these could possibly deteriorate the soundness of forest areas by reducing the core areas which are habitats of species. In conclusion, the results of this study evaluate the influence of much broader urban development on environment structure around urban and mutual relationship between them. In addition, it can provide methods and basic informations for the establishment of metropolitan urban plan after due considerations of the landscape ecological principle.

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